Police investigate threat at Greenfield Elementary School

GILBERT, Ariz. -- Police are investigating a threat made at Greenfield Elementary School in Gilbert.

The threat was reportedly very specific, and was directed toward students and a teacher. It was printed from a computer in a classroom, so police say any number of people could have had access to that computer.

A letter from school principal Colin Kelly read: "I wanted to make you aware of a situation that occurred on campus today. In the later part of the day a teacher brought me a document that had been printed on a classroom computer. The message on the document was a threat directed toward students and a teacher. Upon receiving the document I began my investigation.The investigation is ongoing, however I can say with certainty that the message was produced on campus. It did not come from outside the school. I have notified all the appropriate personnel, including the Gilbert Police Department. We live in a day and age when even the slightest of threats is treated with the utmost attention and concern. The safety of everyone at Greenfield Elementary is always my top concern."

Kelly later directed 3TV to contact the district with any further questions.

Gilbert Police say they'll have officers on campus first thing in the morning to investigate.